16.在树上in the tree/on the tree

15.对…感到惊讶be surprised/amazed at

14.跟着某人做某事/去某地follow sb to do/地点

13.大约在10点钟at around ten o’clock

12.有一次不寻常的经历have an unusual experience

11.起飞/脱下take off

10.沿着街道走walk down/along the street

9.报警call the police

8.降落在中央大街上land on Center Street

7.航天博物馆the Museum of Flight